ALMOcN 5 Pack TTL to RS485 Adapter Module 33V 5V 485 to TTL Signal Single chip Serial Port Level converter Borad with RXD, TXD Indicator

ALMOcN 5 Pack TTL to RS485 Adapter Module 33V 5V 485 to TTL Signal Single chip Serial Port Level converter Borad with RXD, TXD IndicatorParameters: Operating voltage range: Dc 30V 30V Operating tempe...